Let's match the given expressions to their leading coefficients.
The leading coefficients will be the coefficients in front of the variables with the highest exponents in each expression.
Here, we are to rewrite each expression in standard form.
We have:
• Expression A.
Therefore, the the leading coefficient here is 3.
• Expression B.
This expression is already in standard form.
Therefore, the leading coefficient is 5.
• Expression C.
The leading coefficient here is 2.
• Expression D.
The leading coefficient here is 1.
• Expression E:
The leading coefficient is 4.
ANSWER:
(A). 3
(b).